[PATCH 3.2 73/77] bluetooth: Validate socket address length in sco_sock_bind().

Ben Hutchings
2015-12-24T15:44:28Z

From: "David S. Miller" <davem@davemloft.net>

[ Upstream commit 5233252fce714053f0151680933571a2da9cbfb4 ]

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
net/bluetooth/sco.c | 3 +++
1 file changed, 3 insertions(+)

--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -475,6 +475,9 @@ static int sco_sock_bind(struct socket *
if (!addr || addr->sa_family != AF_BLUETOOTH)
return -EINVAL;

+ if (addr_len < sizeof(struct sockaddr_sco))
+ return -EINVAL;
+
lock_sock(sk);

if (sk->sk_state != BT_OPEN) {